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Full-Text Articles in Medicine and Health Sciences
The Acute Effects Of Ballistic And Non-Ballistic Concentric-Only Half-Squats On Squat Jump Performance, Timothy J. Suchomel
The Acute Effects Of Ballistic And Non-Ballistic Concentric-Only Half-Squats On Squat Jump Performance, Timothy J. Suchomel
Electronic Theses and Dissertations
The purposes of this dissertation were to examine bilateral asymmetry as a factor of postactivation potentiation, examine and compare the acute effects of ballistic and non-ballistic concentric-only half-squats on squat jump performance, and compare the potentiation and temporal profiles of strong and weak subjects following potentiation protocols that included ballistic and non-ballistic concentric-only half-squats. The following are major findings of the dissertation. Squat jump performance may be acutely enhanced following ballistic concentriconly half-squats; however the changes in performance do not appear to be related to bilateral symmetry. Ballistic concentric-only half-squats acutely improve various squat jump performance variables at various time …
Muscular And Neural Contributions To Postactivation Potentiation, Brian Joseph Wallace
Muscular And Neural Contributions To Postactivation Potentiation, Brian Joseph Wallace
Theses and Dissertations--Kinesiology and Health Promotion
Muscle performance is partially a consequence of its recent contractile history. Postactivation potentiation (PAP) can occur after muscle contractions and leads to enhanced neuromuscular performance. The purpose of this dissertation was to explain the relationship between muscle factors (twitch potentiation, TP) and neural factors (reflex potentiation, RP) contributing to overall PAP following a non-fatiguing volitional muscle contraction. The tibial nerves of fifteen resistance trained volunteers (eleven men, four women) were stimulated intermittently at supramaximal (Mmax) and submaximal (Hmax) intensities for 20 minutes on separate days under three conditions: rest (Control); after a after a 10 second maximum voluntary isometric contraction …